Another one of my favorite photo books is "The Microdot" by William White who was a friend of mine. ISBN 0-932572-20-0. It's out of print but well worth the search.
"The Microdot : History and application is the first authoritative review of the entire development of the technique of reducing text and images by photographic and electrographic techniques until they are invisible to the unaided eye."
"The Microdot : History and application is the first authoritative review of the entire development of the technique of reducing text and images by photographic and electrographic techniques until they are invisible to the unaided eye."
